Commits
Andi Kleen committed 1063711b573
x86/mm/kmmio: Make the tracer robust against L1TF The mmio tracer sets io mapping PTEs and PMDs to non present when enabled without inverting the address bits, which makes the PTE entry vulnerable for L1TF. Make it use the right low level macros to actually invert the address bits to protect against L1TF. In principle this could be avoided because MMIO tracing is not likely to be enabled on production machines, but the fix is straigt forward and for consistency sake it's better to get rid of the open coded PTE manipulation. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>